Height: 208 cm to 52 m
Weight: 91 kg to 22.8 tons
Appearance: Episode 35
Futagawara is a gluttonous Ayakashi who serves under Akumaro, capable of consuming objects with his hands. Sent to the mortal realm, Futagawara eats everything, including Ryunosuke's Shodo Phone. By the time he gets full, Futagawara is killed by Juzo and Dayu in order for Akumaro's plan to complete with the Ayakashi showing his true power. Once in his second life, Futagawara's arms are converted into a two halves of a nearly impenetrable wall with a face whose eyes shoot beams. He manages to withstand Daikai-Shinkenoh's attacks before being destroyed once and for all by Samuraihaoh, after destroying the wall.
Nurikabe manifests as a wall that impedes or misdirects walking travelers at night.